Recently the transmission has gone back to "fail-safe" modeand it is throwing DTCs P0505 Idle Air Control System, P1400 Differential Pressure Feedback EGR Circuit Low Input, P0705 Transmission Range Sensor.
Today I replaced the Idle Air Control Valve, the EGR Valve, and the plugs and wires. When I was finished I cleared the codes and test drove the vehicle. It did fine and shifted. I parked the car and came bock out 10 minutes later to move it and it right back to where it was before I started Throwing the same codes again.
I've checked the wire harness under the battery tray for damaged wires but have not checked under the passenger airbag yet.
Please help I'm totally lost on this now.
have the same problem?
Saturday, May 1st, 2010 AT 6:17 PM